TurboGrafx / PC-Engine
Here are the documents in regards to modding a TurboGrafx or PC Engine system with RGB and playing USA and Japanese system via switches. I also include some general pinouts and information on the systems too.
Please note, it can take a couple of minutes for the PDF’s to load! ;)
Note: The system is harder to get to grips with the variation of the consoles for this system than usual, in regards to the Europe/American/Japanese variations of the systems, add-ons and special HUcards needed for that. I have probably made errors in this part of my documentation, in which case apologies. Did my best to understand this stuff but not being a “fanboy” didn’t spend ages trying to check everything, so probably some errors. In saying that, all the documentation in regards to their modding and the project work I undertook are entirely accurate.
TurboGrafx guide – part 1
TurboGrafx guide – part 2
An excellent forum site is this one: PCengineFX
Some of the guide was from http://www.gamesx.com/rgbadd/rgbturbo.htm in regards to RGB modding, however as my TurboGrafx was PAL I had far greater success tapping off the CTX chip, which I managed to find documentation for on the net after a fair bit of searching. If I were modding a USA or Japanese TurboGrafx/PC-Engine in the future, I would wire the RGB directly to a CTX chip given the choice, as it amplifies the C-Sync line easier.